/*
 * Copyright 2021 Shulie Technology, Co.Ltd
 * Email: shulie@shulie.io
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package io.shulie.surge.data.runtime.disruptor;

/**
 * Callback handler for uncaught exceptions in the event processing cycle of the {@link BatchEventProcessor}
 */
public interface ExceptionHandler
{
	/**
	 * <p>Strategy for handling uncaught exceptions when processing an event.</p>
	 *
	 * <p>If the strategy wishes to terminate further processing by the {@link BatchEventProcessor}
	 * then it should throw a {@link RuntimeException}.</p>
	 *
	 * @param ex the exception that propagated from the {@link EventHandler}.
	 * @param sequence of the event which cause the exception.
	 * @param event being processed when the exception occurred.  This can be null.
	 */
	void handleEventException(Throwable ex, long sequence, Object event);

	/**
	 * Callback to notify of an exception during {@link LifecycleAware#onStart()}
	 *
	 * @param ex throw during the starting process.
	 */
	void handleOnStartException(Throwable ex);

	/**
	 * Callback to notify of an exception during {@link LifecycleAware#onShutdown()}
	 *
	 * @param ex throw during the shutdown process.
	 */
	void handleOnShutdownException(Throwable ex);
}
